[clang-cl, PCH] Support for /Yc and /Yu without filename and #pragma hdrstop
With clang-cl, when the user specifies /Yc or /Yu without a filename
the compiler uses a #pragma hdrstop in the main source file to
determine the end of the PCH. If a header is specified with /Yc or
/Yu #pragma hdrstop has no effect.
The optional #pragma hdrstop filename argument is not yet supported.
Differential Revision: https://reviews.llvm.org/D51391
llvm-svn: 341963
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index aea8106..b11581d 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -2862,6 +2862,9 @@
frontend::ActionKind Action) {
Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
+ Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) ||
+ Args.hasArg(OPT_pch_through_hdrstop_use);
+ Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create);
Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ);
if (const Arg *A = Args.getLastArg(OPT_token_cache))
Opts.TokenCache = A->getValue();